Thread-winder.



PATENTED. JUNE 23, 1903 M V PALMER THREAD WINDER. APPLICATION FILED JUNE 19. 1893.

2 SHEETS-SHEET 1.

' No. 731,609. PATENTED JUNE 2 1903:.

M. v. PALMER.

THREAD WINDER. APPLI'QATION rum) JUNE 19. 1893. no mmBL. 2 sums-sum 2.

8 f z llllllllllllllllllli 1 .4%, A 3 f :iiillllll UNITED STATES "PATENT Patented June 23 1903.

FFTCE,

ASSIGNMENTS, .TO UNIVERSAL WINDING MASSACHUSETTS, A CORPORATION OF MAINE.

COMPANY, BOSTON,

Tl-lREAD-WINDER.

SPECIFICATION forming part Of Letters Patent NO. 731,609, d.ated June 23, 1903. Application filed June 19, 1893. SerialNo- 478,167. (N model.) I

.To all whomit mcty concern:

Be it known-that I', MARO V. PALMER, of Willimantic, inthe county of Windham and State of Connecticut, have invented certain new and useful, Improvements in Thread- Winders, of which the following is a fuli,clear, and exact description,whereby any one skilled in the art can make and use the same.

This invention relates to improvements in to winding-machines, and has special reference to the thread controlling and guiding mech anism therefor. I, r

The object of mypresentinvention is to provide a simple, durable, and effective thread.

controlling and :guiding device forwindingmachinesiembodyingthe following elements:

a spring-controlledthread'guiding arm which bears upon-the mass of thread as it is wound upon the bobbin or spool with equal pressure under varying conditions, an adjustable ten sion device by means of which the tensionof the thread is increased or decreased at will and which, in connection with the guide-arm,

insures an equal tension of the thread as the mass of thread wound upon the bobbin or spool increases in diameter, and a brake de-. vice by meansof which the guide-armisheld at any desired position relative to the mass of thread wound and prevented from drop 0 ping below a level once attained. 1

Tothis end my invention consists in the special construction of the several parts of the thread controlling and guiding mechanism, substantially as hereinafter described,

3 5 and pointed out in the claims.

Referring to the drawings, Figure 1 represents in side elevation a portion of a threadwinding machine embodying my invention; Fig. 2, a plan View of the device, partially in section and with-the outer end of the threadguide arm cut away; Fig. 3, a front View of I the same with the handle broken away; Fig. 4, a detail side view of the thread-clamping jawsininoperativeposition; Fig.5,a front end view of the same; Figs. 6, 7, 8, and 9, sectional details showing the traverser, sleeve, and looking devices.

In the drawings, or represents a portion of the framework of the winding-machine; I),

the supplying-spool of thread, which is supported upon a spindle o, the ends of which are supported in hearings in brackets d, secured to the frame, one of saidbrackets only being shown. f

The bobbin 8, upon which the thread is wound, is removably supported in bearings upon a bracket 6, secured to the frame of the machine, all of which may be of anysuitable construction and arrangement.

F represents the thread-controlling device as a whole, which is adjustably secured upon a traverser or reciprocating rod f, supported in brackets f, one of which is shown in Fig.

,1, the throw of which traverser is controlled by cams or other suitable devices forming a 5 part of the mechanism of the winding-machine.

Any suitable mechanism for rotating the bobbin upon which the thread is wound and for regulating the throw of the traverser and thread-controlling device may be used, and as these particular elements constitute no part of the present invention illustrations and minute descriptions thereof are deemed unnecessary and are therefore dispensed with.

The thread-controllingdeviceiF comprises the sleeve g, 'reniovably secured to the traverser f, the cylindrical casing g, surrounding the sleeve 9, the thread-guide arm 9 the tension device consisting of the arm h, adjustably secured to the end of the traverserf, and the bevel-faced tension-jaws it, which constitute the thread-clamp, one of which jaws is fixed to the guide-arm g and the other of which is adjustably secured to the arm h, and means to regulate theimovements of the guide-arm g and thread-clamp jaws, the construction and arrangements of which will be hereinafter-more particularly described.

As will be noticed byreferenceto Fig-r2 of the drawings, the traverserf is reduced at its end to form the shoulders f f and the sleeve g is flanged, as shown at 9 to fit the shouldered portion of the traverser, an annular space being left between the sleeve and outer end of the traverser to receive the spiral spring j, one end of which abuts against a pin 9 upon the inner side of the sleeve and'the other end of which extends into the collar h upon the arm h, which supports the tensionjaw t', said collar being secured by a set-screw to the end of the traverser, as clearly shown in Fig. 2.

The cylindrical casingg',towhichthethreadguide arm g is secured, is flanged internally at one end and bears upon the sleeve g, the internal diameter of said casing being sufficient to receive the spiral spring 70, which snrrounds the sleeve g, said spring engaging the casing at one end, and at the other end it ongages a flanged collar which is secured-by a set-screw to the sleeve 9, as shown in Fig. 2.

Screwed through the free end of the arm h is a tension-regulating screw 1, and through said screw is loosely extended a pin Z, at the inner end of which is secured the tension-jaw '5. A spiral spring Z surrounds said pin Z and is interposed between the jawi and end of the screw Z, forcing said jaw into contact with the other jaw t of the thread-clamp, and a lock-nut Z upon the screwl bears against the inner face of the arm h, preventing accidental rotation of said tension-screw. These tension-jaws 2' t" have beveled or inclined adjacent faces, as clearly shown in Fig. 5, the one, 2', having a flange 4?, which projects slightly beyond the edge of the jaw 41, said flange acting as a bearing for the thread and a guide for the jaw'i in its movement.

Secured to the upper part of the jaw i is a thread-guide 2' which is shown as a small disk with a groove in its periphery, in which the thread rides. The thread in its travel from the supply-spool to the bobbin, upon which it is wound, extends upward through a guide-loop 111, preferably of wire, secured to the guide-arm g whence it passes between the inclined faces of the tension jaws t' t, thence around the guide 2' and along the upper edge and around the end of the guidearm, which is grooved to receive and guide the thread to the bobbin.

The spiral spring 7c within the casing g presses the end of thread-guide arm 9 in close contact with the mass of thread as it is wound upon the bobbin and insures an equal pressure during the elevation of said arm as the mass of thread increases in diameter.

The arm g is provided with a pin 01, and the sleeve 9 is provided with a projection 12 to act as a stop to limit the depression of the said arm g The spiral springj around the end of the traverser acts upon the sleeve 9 and tends to rotate it and cause it to assume the position shown in dotted lines in Fig. 1, which rotation will bring the projection 02' in contact with the pin upon arm 9 will lift said arm out of contact with the bobbin, as shown by said dotted lines, Fig. 1, which position is desirable when rethreading or inserting another bobbin.

An arm 0, pivoted within a handle 0 upon the sleeve g, has a bevel-faced catch at its lower end 0 which engages a bevel-faced pin 0 upon the traverserf, and a spring 0 within the handle 0 keeps the lower end of the arm 0 normally pressed into a locked engagement with the pin, the whole forming an au-. tomatic catch to lock the sleeve in its various positions with relation to the traverser.

A pin 1) is loosely mounted in a hole in the casing g, as shown in Fig. 2, with its inner end bearing against the sleeve g, and a setscrew 1) bears against the outer end of said pin 19 and regulates the pressure of said pin against the sleeve. This device forms what may be termed a stop to prevent the guidearm 9 from being forced downward below a position once attained by the accumulation of the thread upon the bobbin. The spring 7t tends to hold the arm 9 normally downward, and the function of this stop is to prevent said arm from raising and lowering in its traversing motion across the bobbin owing to any unevenness in the winding, and the result is that the thread is laid more evenly on the bobbin than would be the case if the arm was allowed to sink into any depression which might be formed. It has also been found by experiment that in the use of the spring 70 in connection withthis stop less attention and care has .to be paid in adjusting the stop to a certain degree.

In operation when it is desired to throw the guide-arms out of contact with the mass of thread upon the bobbin, as when the bobbin is full, it is simply necessary to press the upper end of the locking-arm 0, which will throw the catch at its lower end out of engagement with the pin 0 on the traverser, and the springj, acting upon the sleeve g, rotates said sleeve, together with the casing g,

and in consequence lifts the guide-arm g as shown in dottedlines, Fig. 1.

This construction and arrangement of parts forms a very simple and effective thread-controlling device for winding-machines.

The operation of the device is as follows: A thread having been passed from the supplying-spool l) upward through the guideloop m and between the tension-jaws1li',thence around the thread-guide 2' along the upper edge of the arm 9 and around the end of the arm through a groove from which it is guided onto the bobbin upon which it is wound, as the bobbin is rotated the traverserf' is reciprocated from side to side of the bobbin, and as the thread accumulates on the bobbin the arm g is forced upward by such accumulation. In the winding of bobbins with this device no means are provided at the ends of the bobbin for supporting the thread, the accumulated mass of thread forming a wall at each end of the bobbin, and in order to provide means whereby the thread shall be securely held in place it is desirable that the tension of the thread shall be sufficient to wind the thread at the core with a density to firmly support the accumulating mass and that the tension on the thread as the mass accumulates toward the outer surface of the bobbin shall decrease and not be so great as to press the inner portion of the mass and of thetension on the spring 1, and also owing to the decrease in the bearing-surface be tween the two jaws as the jaw & isforced upward this forms an automatic tension device.

I claim as my invention- 1. In combination in a winding-machine, a traverser, a spring-casing supported on the traverser, a thread-guiding arm supported on the casing, a spring located within the easing and normally pressing the arm down upon a mass of thread being wound upon a bobbin, and a device engaging the thread with a tension that automatically decreases in the winding operation, all substantially as described.

2. In awinding-machine, the traverser f, the sleeve g adjustably secured thereto, the casing g loosely mounted upon said sleeve and having the outwardly-projecting threadguiding armg having the bevel-faced tension-jaw t" secured to it, the arm h fixed to the end of the traverser having the bevelfaced tension-jaw 11 adj ustably connected to its free end, a spring Z to press the tensionjaws together, and a spring to regulate and control the downward pressure and movement of the thread-guide arm, as described. p

3. In a winding-machine, the combination with the traverser of a spring-controlled thread-guide and an adjustable tension device including two bevel-faced jaws movable relative to each other and a spring and adjustable screw to press said jaws together substantially with a yielding pressure, substantially as described.

4. In combination ina winding-machine, a traverser, a spring-controlled arm bearing a thread-guide and movable with relation to the traverser, a tension device having bevelfaced jaws one of which is fixed to said arm,

an arm fixed to the end of the traverser, an adj listing-screw located in the arm, a pin extending through the adjusting screw, the other jaw of the tension device borne on the pin,and a spring interposed between the movable jaw and the adjusting-screw, all substantially as described.

5. In a winding-machine, a thread-guide and tension device, including a traverser, two

arms adj ustably connected with said traverser with their axes alined, two bevel-faced tension-jaws, one of which is fixed toone arm and the other of which is loosely connected to the other arm, and means for pressing said jaws together, substantially as and for the purpose described. I

6. In a thread-winding machine, the traverser fhaving a projecting pin 0 the sleeve g loosely mounted upon the traverser and having the spring-controlled pivoted arm 0 with the catch 0 at its lower end to engage the pin upon the traverser, a spring j for controlling the movements of the said sleeve, the casing g loosely mounted upon said sleeve having the projected thread-guiding arm 9 the spring 1.; engaging the casing and sleeve to press said arm normally downward, and the tension device comprising the two tension-jaws t, i, one fixed to the arm g and tho other adjustably connected with an. arm secured to the traverser, the arm secured to the traverser, and means for pressing the tension-j aws together, substantially as set forth.

7. In combination with the traverser of a winding-machine, an arm adjustably secured to the traverser, a tension-jaw borne on the arm, a sleeve g, a spiral spring t' connected at one end to and located within the sleeve and secured at-its other end to the arm, a flanged casing g, a thread -guiding arm secured thereto, a spring located between and engaging at opposite ends the sleeve 9 and casing g, a tension-jaw borne on the thread-guiding arm, means for pressing the tension-jaws together, and locking mechanism connecting the sleeve and traverser, all substantially as described.

8. In a winding-machine, a traverser, a thread-guide arm loosely supported upon the traverser, an arm fixed to the outer end of the traverser, and a tension device supported on the said arm and consisting of a fixed jaw and a movable jaw, and means for pressing the movable jaw toward the fixed jaw, all substantially as described.

9. In combination with the traverser of a winding-machine, a thread-guide arm loosely supported upon the traverser, an arm secured to the outer end of the traverser, a tension device borne on said arm and consisting of a fixed jaw and a movable jaw, means for pressing the movable jaw toward the fixed jaw,

and a device in engagement with the threadguide arm and preventing it from moving inward after having been moved outward in the formation of the thread on the spool, all substantially as described.

10. In combination, a traverser, a threadguide arm supported on the traverser, and a tension device partly supported on the traverser and in engagement with the thread being wound, and provided with means whereby the tension is decreased as the winding continues, all substantially as described.

11. The combination with a rotating bobbin-support, of a reciprocating traverser, a thread-guide supported to swing to and from the bobbin-support, and a friction device for resisting the automatic inward movement of the guide, substantially as set forth.

12. In combination in a winding-machine, a supply-bobbin, a winding-spindle to which the thread passes from the supply-bobbin, a tension device in contact with the thread bethread-guiding arm lifts in the Winding of the thread and the tension-spring.

14. The combination in a winding-machine, of a bobbin-support and thread-guide and means for reciprocating one in respect to the other and a friction device for preventing the automatic movement of one toward the other in case of separation, substantially as set forth.

MARO V. PALMER.

Witnesses:

GEORGE W. MELONY, LORENZO LITCHFIELD. 

